However, Williams is adamant that Jackson will be a solid teammate to have at the club due to his experience playing alongside him at the Pro Bowl.
He told reporters: "When he told me he wanted to come and they were talking, I just told him basically that we would love to have a player of his caliber and that our team would be willing to embrace him and try to do big things this year.
"A lot of that stuff is just he-said, she-said stuff. You've got to get to know a guy for yourself. I have never – I haven't had any type of bad feelings toward him or any type of bad read. When I met him, he was a cool guy.
"We exchanged [numbers] at the Pro Bowl and we kept in touch and I don't think he's a bad guy. I don't think his character is bad. I think he's a good addition to this team."
Jackson recorded 82 receptions for 1,332 yards along with nine touchdowns for the Eagles last season.